CONDENSED CONSOLIDATED STATEMENTS OF CASH FLOWS - USD ($) $ in Thousands	3 Months Ended
	Mar. 31, 2021	Mar. 31, 2020
Cash flows from operating activities:
Net loss	$ (21,917)	$ (7,351)
Adjustments to reconcile net loss to net cash provided by operating activities:
Depreciation and amortization	13,410	12,790
Amortization of right of use assets	4,835	2,216
Amortization and write-off of debt issuance costs	494	1,103
Provision for doubtful accounts	(1,078)	1,093
(Gain) loss on sale or disposal of assets or stations	(283)	1,816
Deferred income taxes	(4,719)	5,561
Stock-based compensation expense	1,057	719
Non-cash interest expense on financing liabilities	996	193
Non-cash imputed rental income	(1,109)	0
Changes in assets and liabilities (excluding acquisitions and dispositions):
Accounts receivable	38,231	37,083
Trade receivable	(647)	(989)
Prepaid expenses and other current assets	(6,094)	(11,732)
Operating leases, net	(4,511)	6,623
Other assets	(118)	(3,510)
Accounts payable and accrued expenses	7,416	(19,822)
Trade payable	(111)	124
Other liabilities	94	(1,701)
Net cash provided by operating activities	25,946	24,216
Cash flows from investing activities:
Proceeds from sale of assets or stations	0	12,000
Capital expenditures	(2,890)	(3,108)
Net cash (used in) provided by investing activities	(2,890)	8,892
Cash flows from financing activities:
Repayment of borrowings under term loan	(1,313)	(1,313)
Proceeds from PPP loans	1,681	0
Borrowings under the 2020 revolving credit facility	0	60,000
Financing costs	0	(431)
Shares returned in lieu of tax payments	(315)	(1,072)
Repayments of financing liabilities	(989)	(88)
Repayments of finance lease obligations	(75)	(88)
Net cash (used in) provided by financing activities	(1,011)	57,008
Increase in cash and cash equivalents and restricted cash	22,045	90,116
Cash and cash equivalents and restricted cash at beginning of period	271,761	17,007
Cash and cash equivalents and restricted cash at end of period	$ 293,806	$ 107,123